Graphene spunlace non-woven fabric and preparation method thereof

A technology of spunlace non-woven fabric and graphene, applied in the field of fiber products, can solve the problems of poor strength and durability, cracking, insufficient antibacterial and antifungal functions, etc., and achieve the effect of improving tensile properties and good antibacterial properties.

Pending Publication Date: 2021-07-30

HANGZHOU KAIYUE NEW MATERIAL CO LTD

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AI-Extracted Technical Summary

Problems solved by technology

Currently commercially available non-woven fabrics have the following disadvantages: poor strength and durability, fibers arranged in a certain direction, easy to crack from a right angle, and insuf...

Method used

In the present invention, adopt high-pressure micro-water flow to process, have guaranteed the carrying out of spunlace process, spunlace process is that high-pressure micro-water flow is sprayed onto one or more layers of fiber webs, makes fiber intertwined together, thereby makes The fiber web is strengthened and has a certain strength; further, by controlling the water pressure variable, it is possible to form a fine texture invisible to the naked eye on the surface of the non-woven fabric, which can enhance its technological characteristics, including but not ...

Abstract

The invention relates to a graphene spunlace non-woven fabric and a preparation method thereof. The non-woven fabric is formed by compounding at least two mixed fiber layers. The preparation method comprises the steps that raw material fibers in the preset proportion are taken and attached together to form the mixed fiber layers, and at least two mixed fiber layers are compounded to form the graphene spunlace non-woven fabric. According to the invention, due to the specific two-dimensional structure (formed by carbon atoms periodically and closely stacked in a benzene ring structure, namely a hexagonal honeycomb structure) of the graphene fibers of the non-woven fabric, the non-woven fabric prepared through spunlacing can effectively shield ultraviolet rays and protect the human body from being damaged, and the tensile property of the non-woven fabric is improved; and (2) due to the special structure of a graphene monatomic layer, the specific surface area of the graphene monatomic layer is up to 2630 m<2>/g, the graphene monatomic layer has strong oxidizing property of surface functional groups, bacteria can be inhibited or killed, and the non-woven fabric has the better antibacterial property.

Application Domain

Non-woven fabrics

Technology Topic

Anti bacterialWoven fabric +7

Examples

Experimental program(1)

Example Embodiment

[0019] The present invention will be described in further detail below in conjunction with the examples, but the protection scope of the present invention is not limited thereto.

[0020] The invention relates to a graphene spunlace nonwoven fabric, which is composed of at least two mixed fiber layers.

[0021] Any one of the mixed fiber layers is pasted together by graphene fibers, polyester fibers and viscose fibers.

[0022] The weight percentage of graphene fibers in the mixed fiber layer is 0.05%-0.1%.

[0023] All the mixed fiber layers are compounded by hydroentanglement process.

[0024] The present invention also relates to a preparation method of graphene spunlace nonwoven fabric, in which raw material fibers of a preset ratio are pasted together to form a mixed fiber layer, and at least two layers of mixed fiber layers are combined to form a graphene spunlace nonwoven fabric .

[0025] The raw material fiber is composed of graphene fiber, polyester fiber and viscose fiber.

[0026] At least two layers of mixed fiber layers are compounded and entangled with high-pressure fine water jets.

[0027] In the present invention, based on the two-dimensional structure of graphene dimension (consisting of carbon atoms that are periodically densely packed in a benzene ring structure, that is, a hexagonal honeycomb structure), the non-woven fabric made by spunlace can not only effectively shield ultraviolet rays, but also protect the human body. It is not damaged, and the tensile properties of the non-woven fabric are improved, and the toughness is stronger.

[0028] In the present invention, due to the special structure of the single atomic layer of graphene, its specific surface area is as high as 2630㎡/g, and its surface functional groups have strong oxidative properties, so it can inhibit or kill bacteria, so that the non-woven fabric has better Antibacterial properties.

[0029] The water pressure of the high-pressure fine water flow is 60-250 Bar.

[0030] The high-pressure fine water jet is a variable-frequency jet, and the water pressure variable is 20 Bar/min.

[0031] In the present invention, the high-pressure micro-water flow is used for processing, which ensures the progress of the spunlace process. The spunlace process is to spray the high-pressure micro-water flow onto one or more layers of fiber webs, so that the fibers are entangled with each other, so that the fiber web can be entangled. Reinforced to have a certain strength; further, by controlling the water pressure variable, it is possible to form a fine texture invisible to the naked eye on the surface of the non-woven fabric, which can enhance its technological characteristics, including but not limited to tensile properties and bactericidal ability; It can also enhance the strength of the non-woven fabric itself and ensure its service life.

[0032] In the present invention, there is no clear restriction on the high-pressure fine water flow, but this is a well-known technology in the art, and the character of the high-pressure fine water flow is the default in the machine process in this field.

[0033] Detect the area of functional groups on the surface of graphene spunlace non-woven fabrics, and classify the products; record the data of the spunlace process where the area of functional groups exceeds the threshold.

[0034] In the present invention, the product classification is carried out by the area of the functional group, and because the treatment effect of the spunlace process generally fluctuates, the process data when the area of the functional group exceeds the threshold is recorded, and the optimal process data and process flow are determined after cross-testing.

PUM

Description & Claims & Application Information

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